Yep......You have to drive it. As I understand it, the Subaru system checks tire rotations speeds against each other before it will reset the light.
Yes, Subaru uses sensors......But one system does not preclude the other. All the ECU has to see is the speed reading from all 4 ABS sensors to ascertain whether all are within parameters.BMW uses a system like that, but I'm pretty sure there are transmitters at each wheel in Subarus.
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